Nuclear Matter from Effective Quark-Quark Interaction

被引：17

作者：

Baldo, M. ^{[1
]}

Fukukawa, K. ^{[1
]}

机构：

[1] Ist Nazl Fis Nucl, Sez Catania, I-95123 Catania, Italy

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 24期

关键词：

BARYON-BARYON INTERACTION; BRUECKNER-GOLDSTONE EXPANSION; SHORT-RANGE PART; 3-BODY INTERACTIONS; MODEL; FORCES; 4-BODY;

D O I：

10.1103/PhysRevLett.113.242501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study neutron matter and symmetric nuclear matter with the quark-meson model for the two-nucleon interaction. The Bethe-Bruckner-Goldstone many-body theory is used to describe the correlations up to the three hole-line approximation with no extra parameters. At variance with other nonrelativistic realistic interactions, the three hole-line contribution turns out to be non-negligible and to have a substantial saturation effect. The saturation point of nuclear matter, the compressibility, the symmetry energy, and its slope are within the phenomenological constraints. Since the interaction also reproduces fairly well the properties of the three-nucleon system, these results indicate that the explicit introduction of the quark degrees of freedom within the considered constituent quark model is expected to reduce the role of three-body forces.

引用

页数：5

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